Seventh Army was the first American formation of army size to see combat in World War II. It was commanded by Lieutenant General George Patton. Hard battles were fought in Alsace and Lorraine during the winter of 1944-45, in which Seventh Army played a major role. In the spring of 1945, Seventh Army crossed the Rhine River into Germany itself. Parts of the Black Forest and Bavaria were captured by Seventh Army including Hitler's Alpine residence the Berghof.